[PATCH 01/13] tst_test: Add may_kmemleak flag and annotate tests

Cyril Hrubis <[email protected]>
Newsgroups gmane.linux.ltp
Message-ID <[email protected]> 
This information was so far recoded only in the comment in the cve
runtest file. Move it to the test so that it appears in the metadata.

Signed-off-by: Cyril Hrubis <[email protected]>
---
 include/tst_test.h                                          | 6 +++++-
 metadata/metaparse.c                                        | 1 +
 testcases/cve/cve-2022-4378.c                               | 1 +
 testcases/cve/cve-2025-21756.c                              | 1 +
 testcases/cve/cve-2025-38236.c                              | 1 +
 testcases/kernel/crypto/af_alg08.c                          | 1 +
 testcases/kernel/syscalls/fsconfig/fsconfig03.c             | 1 +
 testcases/kernel/syscalls/io_uring/io_uring04.c             | 1 +
 .../kernel/syscalls/perf_event_open/perf_event_open03.c     | 1 +
 testcases/network/sockets/xfrm01.c                          | 1 +
 testcases/network/sockets/xfrm02.c                          | 1 +
 testcases/network/sockets/xfrm03.c                          | 1 +
 12 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/include/tst_test.h b/include/tst_test.h
index c69362485..4afe4cbe0 100644
--- a/include/tst_test.h
+++ b/include/tst_test.h
@@ -353,6 +353,10 @@ struct tst_fs {
  *               needed for tests that need to create device files since tmpfs
  *               at /tmp is usually mounted with 'nodev' option.
  *
+ * @may_kmemleak: If set the test may cause a kernel memory leak. If such test
+ *                fails it's a good idea to reboot before continuing with
+ *                subsequent testcases.
+ *
  * @restore_wallclock: Saves wall clock at the start of the test and restores
  *                     it at the end with the help of monotonic timers.
  *                     Testcases that modify system wallclock use this to
@@ -575,7 +579,7 @@ struct tst_fs {
 	unsigned int skip_in_lockdown:1;
 	unsigned int skip_in_secureboot:1;
 	unsigned int skip_in_compat:1;
-
+	unsigned int may_kmemleak:1;
 
 	int needs_abi_bits;
 
diff --git a/metadata/metaparse.c b/metadata/metaparse.c
index a0f94511d..532cbe405 100644
--- a/metadata/metaparse.c
+++ b/metadata/metaparse.c
@@ -1141,6 +1141,7 @@ static struct typemap tst_test_typemap[] = {
 	{.id = "needs_hugetlbfs", .type = DATA_BOOL},
 	{.id = "needs_cgroup_nsdelegate", .type = DATA_BOOL},
 	{.id = "needs_cmds", .child = needs_cmds_typemap},
+	{.id = "may_kmemleak", .type = DATA_BOOL},
 	{}
 };
 
diff --git a/testcases/cve/cve-2022-4378.c b/testcases/cve/cve-2022-4378.c
index 1cb8ea76c..8213d1b20 100644
--- a/testcases/cve/cve-2022-4378.c
+++ b/testcases/cve/cve-2022-4378.c
@@ -86,6 +86,7 @@ static struct tst_test test = {
 	.tcnt = ARRAY_SIZE(testcase_list),
 	.setup = setup,
 	.cleanup = cleanup,
+	.may_kmemleak = 1,
 	.taint_check = TST_TAINT_W | TST_TAINT_D,
 	.needs_kconfigs = (const char *[]) {
 		"CONFIG_USER_NS=y",
diff --git a/testcases/cve/cve-2025-21756.c b/testcases/cve/cve-2025-21756.c
index 80fb84c47..edc6b2aa5 100644
--- a/testcases/cve/cve-2025-21756.c
+++ b/testcases/cve/cve-2025-21756.c
@@ -87,6 +87,7 @@ static void run(void)
 static struct tst_test test = {
 	.test_all = run,
 	.taint_check = TST_TAINT_W | TST_TAINT_D,
+	.may_kmemleak = 1,
 	.tags = (const struct tst_tag[]) {
 		{"linux-git", "fcdd2242c023"},
 		{"CVE", "2025-21756"},
diff --git a/testcases/cve/cve-2025-38236.c b/testcases/cve/cve-2025-38236.c
index 16582fe64..f6199c06b 100644
--- a/testcases/cve/cve-2025-38236.c
+++ b/testcases/cve/cve-2025-38236.c
@@ -88,6 +88,7 @@ static struct tst_test test = {
 	.test_all = run,
 	.setup = setup,
 	.cleanup = cleanup,
+	.may_kmemleak = 1,
 	.needs_kconfigs = (const char *[]) {
 		"CONFIG_AF_UNIX_OOB=y",
 		NULL
diff --git a/testcases/kernel/crypto/af_alg08.c b/testcases/kernel/crypto/af_alg08.c
index 937ab1758..2de7aba97 100644
--- a/testcases/kernel/crypto/af_alg08.c
+++ b/testcases/kernel/crypto/af_alg08.c
@@ -159,6 +159,7 @@ static struct tst_test test = {
 	.test_all = run,
 	.cleanup = cleanup,
 	.needs_tmpdir = 1,
+	.may_kmemleak = 1,
 	.tags = (const struct tst_tag[]) {
 		{"linux-git", "a664bf3d603d"},
 		{"CVE", "2026-31431"},
diff --git a/testcases/kernel/syscalls/fsconfig/fsconfig03.c b/testcases/kernel/syscalls/fsconfig/fsconfig03.c
index 43fd4c4a8..68f073836 100644
--- a/testcases/kernel/syscalls/fsconfig/fsconfig03.c
+++ b/testcases/kernel/syscalls/fsconfig/fsconfig03.c
@@ -88,6 +88,7 @@ static struct tst_test test = {
 	.format_device = 1,
 	.mntpoint = MNTPOINT,
 	.all_filesystems = 1,
+	.may_kmemleak = 1,
 	.taint_check = TST_TAINT_W | TST_TAINT_D,
 	.skip_filesystems = (const char *const []){"fuse", NULL},
 	.tags = (const struct tst_tag[]) {
diff --git a/testcases/kernel/syscalls/io_uring/io_uring04.c b/testcases/kernel/syscalls/io_uring/io_uring04.c
index 026caf334..f3b44749e 100644
--- a/testcases/kernel/syscalls/io_uring/io_uring04.c
+++ b/testcases/kernel/syscalls/io_uring/io_uring04.c
@@ -344,6 +344,7 @@ static struct tst_test test = {
 	.timeout = 60,
 	.forks_child = 1,
 	.taint_check = TST_TAINT_W | TST_TAINT_D,
+	.may_kmemleak = 1,
 	.needs_kconfigs = (const char *[]) {
 		"CONFIG_RDS",
 		"CONFIG_RDS_TCP",
diff --git a/testcases/kernel/syscalls/perf_event_open/perf_event_open03.c b/testcases/kernel/syscalls/perf_event_open/perf_event_open03.c
index 389cc3511..cfd563d81 100644
--- a/testcases/kernel/syscalls/perf_event_open/perf_event_open03.c
+++ b/testcases/kernel/syscalls/perf_event_open/perf_event_open03.c
@@ -127,6 +127,7 @@ static struct tst_test test = {
 	.setup = setup,
 	.cleanup = cleanup,
 	.needs_root = 1,
+	.may_kmemleak = 1,
 	.runtime = 300,
 	.tags = (const struct tst_tag[]) {
 		{"linux-git", "7bdb157cdebb"},
diff --git a/testcases/network/sockets/xfrm01.c b/testcases/network/sockets/xfrm01.c
index 2ca77c40f..33905f2a6 100644
--- a/testcases/network/sockets/xfrm01.c
+++ b/testcases/network/sockets/xfrm01.c
@@ -261,6 +261,7 @@ static struct tst_test test = {
 	.setup = setup,
 	.cleanup = cleanup,
 	.needs_tmpdir = 1,
+	.may_kmemleak = 1,
 	.needs_kconfigs = (const char *[]) {
 		"CONFIG_USER_NS=y",
 		"CONFIG_NET_NS=y",
diff --git a/testcases/network/sockets/xfrm02.c b/testcases/network/sockets/xfrm02.c
index cef9e7060..f99b7b53a 100644
--- a/testcases/network/sockets/xfrm02.c
+++ b/testcases/network/sockets/xfrm02.c
@@ -251,6 +251,7 @@ static struct tst_test test = {
 	.cleanup = cleanup,
 	.needs_tmpdir = 1,
 	.forks_child = 1,
+	.may_kmemleak = 1,
 	.needs_kconfigs = (const char *[]) {
 		"CONFIG_USER_NS=y",
 		"CONFIG_NET_NS=y",
diff --git a/testcases/network/sockets/xfrm03.c b/testcases/network/sockets/xfrm03.c
index 676c76e2b..2c83e3ae3 100644
--- a/testcases/network/sockets/xfrm03.c
+++ b/testcases/network/sockets/xfrm03.c
@@ -342,6 +342,7 @@ static struct tst_test test = {
 	.cleanup = cleanup,
 	.needs_tmpdir = 1,
 	.forks_child = 1,
+	.may_kmemleak = 1,
 	.needs_kconfigs = (const char *[]) {
 		"CONFIG_USER_NS=y",
 		"CONFIG_NET_NS=y",
-- 
2.53.0


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